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Finding the Fourth Proportional to 322,311.96, 483,334.90 and 139,954.64

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Solution

The fourth proportional to 322,311.96, 483,334.90 and 139,954.64 is: 209,874.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,311.96 : 483,334.90 = 139,954.64 : x
  2. Step 2: Convert to fraction form
    322,311.96/483,334.90 = 139,954.64/x
  3. Step 3: Cross multiply
    322,311.96x = 483,334.90 × 139,954.64
  4. Step 4: Simplify right side
    322,311.96x = 67,644,959,162.37
  5. Step 5: Solve for x
    x = 67,644,959,162.37/322,311.96
  6. Step 6: Final answer
    x = 209,874.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.